Improvement in rotary harrows



F. RAYMOND.

Rotary Harrow.

o. 30,759. Patented Nov. 27,1860.

N. PETERS, PNOTO-LITMOGRAPNER, WASHINGTON. D C

narrows relates to a certain arrangement of de- UNITED STATES PATENTOFFICE.

FRANCIS RAYMOND, OF SANDUSKY, OHIO.

IMPROVEMENT IN ROTARY HARROWS.

Specification forming part of Letters Patent No. 30,759, dated November27, 1860.

To all whom it may concern.-

Be it known that I, FRANCIS RAYMOND, of Sandusky, in the county of Erieand State of Ohio, have invented new and useful Improvements in RotaryHarrows; and I do hereby d-eclare that the following is a full andcomplete description of the construction and operation of the same,reference being had to the accompanyingdrawings, making apart of thisspecification, in which-- Figure 1 is a top view. Fig. 2 is a side view.

Like letters denote like parts in the two views.

The nature of my improvement in rotary vices for the purpose ofpreventing side draft.

In the figures, A represents a metallic rim or band, inside of which isarranged the frame of the harrow, which may be of any suitable design.In the center of the frame is secured an upright arm, B, on which isplaced the metallic socket or sleeve C. To the lower part of the socketO are connected two arms, E and F, that are at right angles to eachother. On the top of these arms is placed and attached the platform H.About the center of this platform the box L, that contains the weight,is secured by a pin, I, on which it can be moved. This box can be keptin any desired position, near or farther from the center of the barrow,by means of the pin J and holes at n in the platform, as indicated bythe dotted lines.

In a slot of the arm E, that extends beyond the platform H, is placed ametallic finger, P, the lower end of which is arranged with a smallroller, It, on which the metallic rim A rests and moves as itrevolves.The upper] end of the finger is kept in place by the key 0, and it isprevented from slipping down by the piece I of the finger resting on thepin 0. There can be a clevis secured to the end of the arm E at T, towhich the team is attached. In this arrangement, the weight L being inthe rear of the axis of rotation, and

as it can be placed so near the center of the harrow, together with thefinger P elevating the front, of course the side draft would be almostentirely removed, which overcomes the objection to rotary barrows.

I do not claim to be the inventor of rotary barrows, but whatdistinguishes my improvement from others is placing the adjustableweight in the rear of the axis of rotation and raising the forward endby the action of the draft, the rim A being supported and moving easilyon the friction roller R in the finger, which causes it to pass easilyover obstructions, and in combination with the weightpreventing sidedraft. The finger P, also extend ing into the ground in the form of atooth,

and being stationary as regards rotation, tends greatly, in combinationwith the other devices, to prevent a side draft of the harrow.

What I claim as my improvement, and desire to secure by Letters Patent,is-

The finger P and roller It, in combination with the adjustable box L,when these several parts are arranged and operated substantially asherein set forth.

FRANCIS RAYMOND.

Witnesses:

W. H. BURRIDGE, HENRY VoLK.

